Features: 1. The round interface set is suitable for KY-20/LA, KY-25/L, KY-26/F1, KYR-26/F1, KY-35/F1, KYR-35/F1, KY-26/F2, KYR-26/F2, KY-35/F2, KYR-35/F2, etc. 2. The square interface set is suitable for KY-25/C, KYR-25/C, KY-32/C, KYR-32/C, KY-25/H, KYR-25/H, KY-32 /H, KYR -32/H etc. 3. Suitable for some mobile air conditioners with a diameter of 15cm. 4. Made of high-quality ABS material, wear-resistant and corrosion-resistant, not easy to age, and durable. 5. Easy to install. Connect to the exhaust hose, and can be easily installed on the back of the portable air conditioner. Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Material: ABS Size: Square: 18*15*6.3cm Round: 15.5*15.5*4.3cm includes: 1 X Air Conditioner Exhaust Hose Coupler